Debris from AF-447

AP photo by Eraldo Peres

Military officers stand guard as workers unload debris belonging to crashed Air France flight AF447 from the Brazilian Navy's Constitution Frigate in the port of Recife, northeast of Brazil on Sunday. A burst of last-minute automatic messages sent by Air France Flight 447 includes one about a problem with a rudder safety device but that does not explain what sent the jet plunging into the Atlantic Ocean, an aviation expert said.

Military officers stand guard as workers unload debris belonging to crashed Air France flight AF447 from the Brazilian Navy's Constitution Frigate in the port of Recife, northeast of Brazil on Sunday. A burst of last-minute automatic messages sent by Air France Flight 447 includes one about a problem with a rudder safety device but that does not explain what sent the jet plunging into the Atlantic Ocean, an aviation expert said. (AP photo by Eraldo Peres)

Military officers stand guard as workers unload debris belonging to crashed Air France flight AF447 from the Brazilian Navy's Constitution Frigate in the port of Recife, northeast of Brazil on Sunday. A burst of last-minute automatic messages sent by Air France Flight 447 includes one about a problem with a rudder safety device but that does not explain what sent the jet plunging into the Atlantic Ocean, an aviation expert said.